Impedance transformation network, power amplifier and method...

Details Impedance transformation network, power amplifier and method... Impedance transformation network, power amplifier and method...

2006-05-30

2006-05-30

Pascal, Robert (Department: 2817)

Wave transmission lines and networks

Coupling networks

With impedance matching

C333S033000, C333S263000, C333S017300

Reexamination Certificate

active

07053728

ABSTRACT:
An impedance transformation network, power amplifier and method for efficiently transmitting an output signal utilizes a series varactor device to provide a variable impedance transformation. The series varactor device may include a number of stacked ferroelectric varactors that function as a variable capacitor to provide the variable impedance transformation in response to the power level of the output signal.

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patent: 6563153 (2003-05-01), Wikborg et al.
patent: 6628502 (2003-09-01), Masumiya et al.
patent: 2001/0054748 (2001-12-01), Wikborg et al.

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